Question:
The combination of Directrix and Generatrix in a machining operation is shown in the figure. The surface produced is 
The combination of Directrix and Generatrix in a machining operation is shown in the figure. The surface produced is
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When the directrix is circular and the generatrix moves along it, the surface produced is cylindrical.
Updated On: Sep 4, 2025
- cylindrical
- planar
- helical
- parabolic
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The Correct Option is A
Solution and Explanation
- The combination of directrix and generatrix in machining operations refers to the path along which a tool moves to create a surface. The directrix typically defines a fixed line or curve, while the generatrix is a moving element that sweeps along the directrix to generate a specific surface.
- In this case, a cylindrical surface is generated when the generatrix moves along the directrix, which is a circular path.
- In this case, a cylindrical surface is generated when the generatrix moves along the directrix, which is a circular path.
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